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A little planning turns a mix of colors into neat, matching tubes. Play this free water sort puzzle online through 50 progressive levels, with no download and no timer.

Water Sort Guides

View all Water Sort guides

How to Play Water Sort

1

Choose a tube

Tap or click a nonempty tube to select it. Tap it again to cancel.

2

Find a destination

Choose an empty tube or a tube with the same color on top and room for more water.

3

Pour matching layers

All consecutive layers of the top color move together, up to the available space.

4

Sort every color

Finish with each color in its own full tube. Empty tubes may remain.

This water sorting game starts with two colors and builds up to twelve. Undo lets you revisit a decision; Restart gives you the original board. Complete a level to unlock the next, or use Previous Level to revisit an earlier puzzle.

Water Sort Rules

  • Every tube holds exactly four layers of liquid.
  • Only the top continuous group of one color can be poured.
  • Water goes into an empty tube or onto the same top color, with available space.
  • You cannot pour from an empty tube, into a full tube, or back into the same tube.
  • Every nonempty tube must be full and contain just one color to complete the level.

An illegal pour leaves the board unchanged. All 50 starting puzzles have a verified solution, but a sequence of your own moves can get stuck. There is no penalty for using Undo or trying again.

Tips for Water Sort

  • Keep an empty tube available for moving a color out of the way.
  • Look at what a pour will uncover before choosing its destination.
  • Finish accessible color groups when that frees space for another move.
  • Avoid filling every empty tube too early; leave room to reorganize.
  • Think one or two moves ahead, and use Undo when a plan closes off your options.

Color water sort is about arranging space as much as matching colors. Watch the top layer and available space as you sort water by color. Sound can be turned off, and reduced motion follows your device preference.

Helpful answers

Frequently asked questions

What is Water Sort?

Water Sort is a color sorting puzzle. Move colored water between tubes until every nonempty tube contains four layers of a single color.

How do you play Water Sort?

Tap a nonempty tube, then tap an empty tube or one with the same top color and free space. The game pours as many consecutive matching top layers as the destination can hold.

Can I play Water Sort online for free?

Yes. All 50 levels are free to play in your browser, with no download or account required.

Can you undo moves?

Yes. Undo restores the complete board before your last pour. Restart restores the original puzzle and clears the undo history. Undo history lasts for the current visit.

Are all levels solvable?

Yes. Each of the 50 fixed starting boards has been checked by replaying a full legal solution. A move you choose can still lead to a dead end; use Undo or Restart to try another approach.

Does Water Sort work on mobile?

Yes. Tap to play on a phone or tablet. The tubes wrap into multiple rows as puzzles grow, and the same game also supports desktop mouse and keyboard controls.

What happens when I finish a level?

Completing a level unlocks the next one. Your current board, level and highest unlocked level are saved on this device when browser storage is available. After Level 50, you can replay completed levels.